From: NeilBrown <neilb@suse.de>
Date: Fri, 7 Oct 2011 03:22:55 +0000 (+1100)
Subject: md/raid1/ avoid bio search in end_sync_read()
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0fc280f606742e8a2969776b2ab11cf6a614d9e1;p=linux-beck.git

md/raid1/ avoid bio search in end_sync_read()

We know which device we just read from so we don't need to
search the bios to find out.  Just use ->read_disk.

Signed-off-by: NeilBrown <neilb@suse.de>
---

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index a0c02fb8af2a..77fab07abcee 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1358,8 +1358,7 @@ static void end_sync_read(struct bio *bio, int error)
 {
 	r1bio_t *r1_bio = bio->bi_private;
 
-	/* this will call update_head_pos() */
-	find_bio_disk(r1_bio, bio);
+	update_head_pos(r1_bio->read_disk, r1_bio);
 
 	/*
 	 * we have read a block, now it needs to be re-written,